Fix build for 6.0

Author: kateinoigakukun

Diff for: Examples/Testing/Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.2
+// swift-tools-version: 6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

Diff for: Examples/Testing/Tests/CounterTests/CounterTests.swift

@@ -1,6 +1,8 @@
-import Testing
 @testable import Counter
 
+#if canImport(Testing)
+import Testing
+
 @Test func increment() async throws {
     var counter = Counter()
     counter.increment()
@@ -13,3 +15,22 @@ import Testing
     counter.increment()
     #expect(counter.count == 2)
 }
+
+#endif
+
+import XCTest
+
+class CounterTests: XCTestCase {
+    func testIncrement() async {
+        var counter = Counter()
+        counter.increment()
+        XCTAssertEqual(counter.count, 1)
+    }
+
+    func testIncrementTwice() async {
+        var counter = Counter()
+        counter.increment()
+        counter.increment()
+        XCTAssertEqual(counter.count, 2)
+    }
+}

Diff for: Examples/Testing/run-tests.mjs

@@ -37,7 +37,7 @@ struct PackagingPlanner {
     /// Construct the build plan and return the root task key
     func planBuild(
         make: inout MiniMake,
-        wasmProductArtifact: URL,
+        wasmProductArtifact: URL
     ) -> MiniMake.TaskKey {
         let (allTasks, _) = planBuildInternal(make: &make, wasmProductArtifact: wasmProductArtifact)
         return make.addTask(
@@ -47,7 +47,7 @@ struct PackagingPlanner {
 
     private func planBuildInternal(
         make: inout MiniMake,
-        wasmProductArtifact: URL,
+        wasmProductArtifact: URL
     ) -> (allTasks: [MiniMake.TaskKey], outputDirTask: MiniMake.TaskKey) {
         // Prepare output directory
         let outputDirTask = make.addTask(
@@ -109,7 +109,7 @@ struct PackagingPlanner {
     /// Construct the test build plan and return the root task key
     func planTestBuild(
         make: inout MiniMake,
-        wasmProductArtifact: URL,
+        wasmProductArtifact: URL
     ) -> (rootTask: MiniMake.TaskKey, binDir: URL) {
         var (allTasks, outputDirTask) = planBuildInternal(make: &make, wasmProductArtifact: wasmProductArtifact)